THE DETERMINATION OF MOLYBDENUM IN URANIUM AND IN MOLYBDENUM-URANIUM AND MOLYBDENUM-NIOBIUM MIXTURES
An improvement ia the spectrophotometric determi nation of molybdenum by means of its complex with toluene-3:4-dithiol is described. This consists in forming the complex in an aqueous-solvent medium in which it is soluble, and therefore avoids the necessity for solvent extraction. When applied by difference, either in the presence or absence of uranium, the procedure has a coefficient of variation of plus or minus 0.16 per cent and can be applied to uraaium-molybdenum alloys containing 0.2 per cent or more of molybdenum. Alternatively, if a non-difference procedure is used, concentrations of molybdenum in uranium down to 1 p.p.m. can be determined. with slight modification, the procedure is applicable to the determaination of molybdenum in its alloys with niobium. The effects of impurities and of variations in temperature and acidity are discussed. (auth)
- Research Organization:
- United Kingdom Atomic Energy Authority, Culcheth, Warrington, Lancs., Eng.
- NSA Number:
- NSA-13-001971
- OSTI ID:
- 4296781
- Journal Information:
- Analyst, Journal Name: Analyst Vol. Vol: 83
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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THE DETERMINATION OF MOLYBDENUM IN URANIUM METAL USING DITHIOL
Study of the Transformation of Uranium-Niobium Alloys With Low Niobium Concentrations, Tempered From the Gamma and Beta + Gamma 1 Regions and Then Annealed at Different Temperatures. Comparison With Uranium-Molybdenum Alloys; Etude des transformation des alliages uranium-niobium a faible teneur en niobium trempes depuis les domaines gamma et beta + gamma 1 puis revenus a differentes temperatures. Comparaison avec les alliages uranium-molybdene
Related Subjects
ADSORPTION-- ALCOHOLS-- COLOR-- COMPLEXES-- ERRORS-- LIGHT-- MOLYBDENUM-- MOLYBDENUM ALLOYS-- NIOBIUM ALLOYS-- ORGANIC COMPOUNDS-- ORGANIC SULFUR COMPOUNDS-- PHOTOMETRY-- QUALITATIVE ANALYSIS-- SOLUBILITY-- SOLVENT EXTRACTION-- SOLVENTS-- SPECTROSCOPY-- TEMPERATURE-- THIOLS-- TOLUENE-- TRACE AMOUNTS-- URANIUM-- URANIUM ALLOYS-- WATER
CHEMISTRY